Can anyone identify my frame - The 1947 - Present Chevrolet & GMC Truck Message Board Network

**K10-Kansas** · 06-17-2023, 06:58 PM

The mechanic that worked on it guessed it was a 77 or 78.

It's been cut to a short step side. It's 4x4. My parking brake cable look similar to K5 parking brake mounts.

**K10-Kansas** · 06-17-2023, 07:01 PM

Here's another picture

rick1956 · 06-18-2023, 08:40 AM

No frame numbers stamped into it? My 84 has VIN's all over the frame. I've counted at least 3 places.) That would be a good start to tracking your birth certificate down.

**K10-Kansas** · 06-18-2023, 08:53 AM

Quote:

Originally Posted by rick1956

No frame numbers stamped into it? My 84 has VIN's all over the frame. I've counted at least 3 places.) That would be a good start to tracking your birth certificate down.

It has this number. I could also try running my fingers along the top of the frame to see if I feel other numbers stamped in.

379338 6 7 15 76

kennyw · 06-21-2023, 11:58 AM

Quote:

Originally Posted by K10-Kansas

379338 6 7 15 76

The end of that looks an awful lot like a date to me.

Keith Seymore · 06-21-2023, 02:47 PM

That's a part number and date code.

The partial VIN will be on the top of the upper flange of the frame rail.

K

**K10-Kansas** · 06-21-2023, 03:15 PM

Quote:

Originally Posted by Keith Seymore

That's a part number and date code.

The partial VIN will be on the top of the upper flange of the frame rail.

K

Oh so the frame is 1976?

The frame might have been too dirty to feel for other numbers. I'll wash it tonight and try again.

**mr48chev** · 06-21-2023, 04:35 PM

I'd take a mirror and check the top of the frame rail under the cab. and under the bed Back to where the tank used to be

I couldn't get the link to work but this screenshot should give you an idea of what the vin should look like on the frame.

Keith Seymore · 06-21-2023, 05:40 PM

Quote:

Originally Posted by mr48chev

I'd take a mirror and check the top of the frame rail under the cab. and under the bed Back to where the tank used to be

I couldn't get the link to work but this screenshot should give you an idea of what the vin should look like on the frame.

CFJ175757, where:

C = Chevrolet (T=GMC)
F = Model Year (A=1980, B=1981... F=1985))
J = Final Assembly location (J = Janesville, F = Flint, 1 = Oshawa, etc)
175757 = sequential portion of VIN, starting with 100001 (GMC may start with 500001)

K

Keith Seymore · 06-21-2023, 05:45 PM

Quote:

Originally Posted by K10-Kansas

Oh so the frame is 1976?

The frame might have been too dirty to feel for other numbers. I'll wash it tonight and try again.

Maybe. July is right on the cusp of model changeover, so maybe produced in 1976 calendar year for the 1977 model year.

I do not recall any big changes between '76 and '77 with the frames, chassis or suspension.

K

**K10-Kansas** · 06-21-2023, 06:19 PM

I feel like one of the biggest identifiers is my emergency brake cable holder. The only vehicles I've seen with this kind of parking brake cable mount have been the K5 blazers. But the frame on a K5 Blazer isn't very long and my frame has been cut to a short frame so maybe that doesn't make sense.

**Getter-Done** · 06-21-2023, 08:41 PM

So your frame has a splice in it.

The front may be from one frame and the rear part from another truck.

**K10-Kansas** · 08-13-2023, 04:06 PM

I finally found the frame vin but all that told be was that it's a 1976 Chevy from St Luis.

Axle · 08-19-2023, 10:03 AM

Getter-Done spotted it.

**K10-Kansas** · 08-19-2023, 10:16 AM

Quote:

Originally Posted by Axle

Getter-Done spotted it.

Yeah it's possible. I cut some plates to reinforce that weld.

06-17-2023, 06:58 PM	#1
K10-Kansas Senior Member Join Date: Nov 2022 Location: Kansas City Posts: 497	Can anyone identify my frame The mechanic that worked on it guessed it was a 77 or 78. It's been cut to a short step side. It's 4x4. My parking brake cable look similar to K5 parking brake mounts. Attached Images __________________ 1971 C10 manual cab. 76 4x4 chassis. Cut short frame. Carbureted Blueprint 350, automatic 700r4. ~ James

06-17-2023, 07:01 PM	#2
K10-Kansas Senior Member Join Date: Nov 2022 Location: Kansas City Posts: 497	Re: Can anyone identify my frame Here's another picture Attached Images __________________ 1971 C10 manual cab. 76 4x4 chassis. Cut short frame. Carbureted Blueprint 350, automatic 700r4. ~ James

06-18-2023, 08:40 AM	#3
rick1956 Registered User Join Date: Jan 2009 Location: Edgewood, WA Posts: 108	Re: Can anyone identify my frame No frame numbers stamped into it? My 84 has VIN's all over the frame. I've counted at least 3 places.) That would be a good start to tracking your birth certificate down. __________________ I may be old, but I still enjoy the feeling of the earth rotating beneath my wheels...

06-21-2023, 02:47 PM	#6
Keith Seymore Registered User Join Date: May 2009 Location: Motor City Posts: 9,226	Re: Can anyone identify my frame That's a part number and date code. The partial VIN will be on the top of the upper flange of the frame rail. K __________________ Chevrolet Flint Assembly 1979-1986 GM Full Size Truck Engineering 1986 - 2019 Intro from an Old Assembly Guy: http://67-72chevytrucks.com/vboard/s...d.php?t=342926 My Pontiac story: http://forums.maxperformanceinc.com/...d.php?t=560524 Chevelle intro: http://www.superchevy.com/features/s...hevy-chevelle/

06-21-2023, 04:35 PM	#8
mr48chev Registered User Join Date: Jul 2007 Location: Toppenish, WA Posts: 15,710	Re: Can anyone identify my frame I'd take a mirror and check the top of the frame rail under the cab. and under the bed Back to where the tank used to be I couldn't get the link to work but this screenshot should give you an idea of what the vin should look like on the frame. Attached Images Last edited by mr48chev; 06-21-2023 at 04:54 PM.

06-21-2023, 06:19 PM	#11
K10-Kansas Senior Member Join Date: Nov 2022 Location: Kansas City Posts: 497	Re: Can anyone identify my frame I feel like one of the biggest identifiers is my emergency brake cable holder. The only vehicles I've seen with this kind of parking brake cable mount have been the K5 blazers. But the frame on a K5 Blazer isn't very long and my frame has been cut to a short frame so maybe that doesn't make sense. Attached Images __________________ 1971 C10 manual cab. 76 4x4 chassis. Cut short frame. Carbureted Blueprint 350, automatic 700r4. ~ James

06-21-2023, 08:41 PM	#12
Getter-Done Senior Member Join Date: Dec 2009 Location: TN. Posts: 8,414	Re: Can anyone identify my frame So your frame has a splice in it. The front may be from one frame and the rear part from another truck. __________________ ________________________________________________________________________________________ ____________________________________________ 84 Chevy K-20 63 Impala (my high school car) http://67-72chevytrucks.com/vboard/s...Crew Cab Build

08-13-2023, 04:06 PM	#13
K10-Kansas Senior Member Join Date: Nov 2022 Location: Kansas City Posts: 497	Re: Can anyone identify my frame I finally found the frame vin but all that told be was that it's a 1976 Chevy from St Luis. __________________ 1971 C10 manual cab. 76 4x4 chassis. Cut short frame. Carbureted Blueprint 350, automatic 700r4. ~ James

08-19-2023, 10:03 AM	#14
Axle Registered User Join Date: Jul 2011 Location: SW Ontario Posts: 1,212	Re: Can anyone identify my frame Getter-Done spotted it. Attached Images



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